Ultrasonic cleaning machine with function expansion function

By introducing the design of support and limit parts into the ultrasonic cleaning machine, combined with ultraviolet disinfection and water level gauge, the cross-contamination problem of existing ultrasonic cleaning machines when cleaning different items is solved, and multi-functional expansion and efficient cleaning effects are achieved.

CN223430651UActive Publication Date: 2025-10-14ZHONGSHAN XIAOLUSHAN CLEANING EQUIP CO LTD
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Patent Information

Application Number
CN202422775686.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2023-11-14
Filing Date
2024-11-13
Publication Date
2025-10-14
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

Existing ultrasonic cleaning machines are prone to cross-contamination when cleaning different types of personal items and lack multifunctional expansion capabilities.

Method used

An ultrasonic cleaning machine with extended function is designed, which includes a main cleaning tank and a secondary cleaning tank. The stable positioning of the secondary cleaning tank in the main cleaning tank is ensured by a support part and a limit part, and is equipped with an ultraviolet disinfection function and a water level gauge to improve the cleaning effect.

Benefits of technology

It avoids cross contamination during the cleaning process of different personal items, provides multifunctional expansion capabilities, improves cleaning efficiency and disinfection effects, and reduces noise and wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The ultrasonic cleaning machine with the function expansion function comprises a shell, a main cleaning tank, an ultrasonic generating device and a control circuit, the main cleaning tank is arranged in the shell, the ultrasonic generating device is arranged at the outer bottom of the main cleaning tank and electrically connected with the control circuit, an opening is formed in the top, corresponding to the main cleaning tank, of the shell, and the control circuit is electrically connected with the main cleaning tank. A cover body is arranged above the opening, and a supporting part for placing the auxiliary cleaning tank and a limiting part for limiting the relative position of the auxiliary cleaning tank and the main cleaning tank are arranged in the main cleaning tank or on the inner side of the opening of the shell or the cover body. According to the ultrasonic cleaning machine, the auxiliary cleaning tank can be placed in the main cleaning tank, the supporting part and the limiting part are arranged in the main cleaning tank and used for supporting the auxiliary cleaning tank and positioning the auxiliary cleaning tank, the relative position of the auxiliary cleaning tank in the main cleaning tank is limited, and the auxiliary cleaning tank is prevented from moving in vibration formed by ultrasonic waves and forming obvious noise.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an ultrasonic cleaning machine, in particular to an ultrasonic cleaning machine with function expansion function. BACKGROUND

[0002] Ultrasonic cleaning is helpful to clean the hidden dirt in the object, and its principle is mainly to make the dirt from the object surface by high frequency vibration, so as to achieve the effect of deep cleaning. The current ultrasonic cleaning machine is applied to personal articles, mainly aiming at cleaning small articles such as glasses, jewelry, dental braces and the like used by individuals.

[0003] Chinese patent document number CN214391406U was published on October 15, 2021, which discloses an ultrasonic cleaning box, comprising a box body, an inner container, an upper cover, an ultrasonic generator and a bottom cover. The box body is provided with a mounting cavity and a stepped groove, and the stepped groove is located at the edge of the top of the box body. The inner container is connected to the mounting cavity. The upper cover is provided with a first protrusion matched with the stepped groove and a second protrusion matched with the inner wall of the inner container. During installation, the first protrusion is connected to the stepped groove, and the second protrusion is connected to the inner wall of the inner container. The ultrasonic generator is installed on the inner container. The bottom cover is installed at the bottom of the box body. Since there is only one inner container, the inner container is generally used for cleaning only glasses, jewelry and other external decorations, or only for cleaning dental braces and other oral products. If the cleaning tank is used for cleaning both external decorations and oral products, cross contamination may occur. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an ultrasonic cleaning machine with function expansion function, which has simple and reasonable structure, is convenient for placing other independent groove bodies inside, and is convenient for cleaning other personal articles.

[0005] The utility model is achieved by the following technical measures:

[0006] An ultrasonic cleaning machine with function expansion function, comprising a shell, a main cleaning tank, an ultrasonic generating device and a control circuit, the main cleaning tank is arranged in the shell, the ultrasonic generating device is arranged at the outer bottom of the main cleaning tank and is electrically connected with the control circuit, the shell is provided with an opening corresponding to the top of the main cleaning tank, a cover is arranged above the opening, and a supporting part for placing a secondary cleaning tank and a limiting part for limiting the relative position of the secondary cleaning tank and the main cleaning tank are arranged in the main cleaning tank or on the inner side of the opening of the shell or the cover.

[0007] The utility model can also be solved by the following technical measures:

[0008] As a more specific solution, the auxiliary cleaning tank is included, a supporting portion is arranged on the side wall of the auxiliary cleaning tank, and the supporting portion is in abutting engagement with the supporting portion; the supporting portion is arranged on the side wall of the main cleaning tank, and the distance between the supporting portion and the inner bottom surface of the main cleaning tank is greater than the distance between the supporting portion and the outer bottom surface of the auxiliary cleaning tank; and the limiting portion is arranged above the supporting portion.

[0009] As a further solution, at least two sides of the top outer periphery of the auxiliary cleaning tank are provided with outward turning edges, the bottom surface of the outward turning edge forms the supporting portion; the front and rear side walls of the main cleaning tank are respectively provided with supporting protrusions, the top surface of the supporting protrusion forms the supporting portion; the main cleaning tank or the shell is provided with a limiting protrusion above the supporting protrusion, the bottom surface of the limiting protrusion forms the limiting portion, and the outward turning edge of the auxiliary cleaning tank is inserted between the supporting protrusion and the limiting protrusion.

[0010] As a further solution, the outer bottom portion of the main cleaning tank is provided with a magnetic attraction point, the inner bottom portion of the main cleaning tank is formed with the supporting portion and the limiting portion above the magnetic attraction point; or, the opening of the shell or the cover is further provided with a second limiting portion; the auxiliary cleaning tank is included, the bottom portion of the auxiliary cleaning tank is provided with a magnetic attraction element, the magnetic attraction element is supported on the magnetic attraction point and is limited by the magnetic attraction point; or, the second limiting portion and the auxiliary cleaning tank are blocked to realize secondary limiting.

[0011] As a further solution, the inner bottom portion of the main cleaning tank is formed with the supporting portion above the ultrasonic wave generating device; the auxiliary cleaning tank is included, and the auxiliary cleaning tank is provided with a pressure receiving portion, and the pressure receiving portion is in abutting pressure receiving with the limiting portion.

[0012] As a further solution, the bottom portion of the cover is provided with an ultraviolet irradiation area, an ultraviolet lamp is arranged on the ultraviolet irradiation area, and the ultraviolet lamp is electrically connected with the control circuit; the top portion of the auxiliary cleaning tank is open, and the top portion of the auxiliary cleaning tank is opposite to the ultraviolet irradiation area after the auxiliary cleaning tank is limited and engaged with the main cleaning tank.

[0013] As a further solution, the auxiliary cleaning tank is provided with an inner water level scale and an outer water level scale, and the height of the outer water level scale is higher than or equal to the height of the inner water level scale.

[0014] As a further solution, the shell includes an upper shell and a lower shell, the upper shell is provided with the opening corresponding to the main cleaning tank at the top portion, the main cleaning tank is connected at the bottom portion of the upper shell and is suspended from the lower shell, a sealing ring is arranged between the top edge of the main cleaning tank and the bottom edge of the opening, and the sealing ring is in sealing engagement with the top edge of the main cleaning tank and the bottom edge of the opening, respectively.

[0015] As a further solution, the control circuit is arranged in the shell; and the auxiliary cleaning tank is a metal tank.

[0016] As a further solution, the control circuit is located at the left end or the right end or the lower part of the housing.

[0017] The utility model discloses the beneficial effects are as follows:

[0018] (1) the main cleaning tank of this ultrasonic cleaning machine can place the vice cleaning tank, and the inside of vice cleaning tank is separated from the main cleaning tank, avoids two tank cross pollution, and the inside of cleaning machine has the supporting portion and the limiting portion for supporting vice cleaning tank and positioning vice cleaning tank, and the relative position of vice cleaning tank in main cleaning tank is limited, prevents vice cleaning tank from moving in the vibration formed by ultrasonic and forming obvious noise.

[0019] (2) the main cleaning tank of this ultrasonic cleaning machine or the inside of the opening of housing or cover is equipped with the supporting portion for placing vice cleaning tank and the limiting portion for limiting the relative position of vice cleaning tank and main cleaning tank, and the mode and position of positioning vice cleaning tank can be flexibly selected.

[0020] (3) the bottom of the cover of this ultrasonic cleaning machine is equipped with ultraviolet irradiation area, and the top of vice cleaning tank is open, and after the limiting cooperation of vice cleaning tank and main cleaning tank, the top of vice cleaning tank is opposite ultraviolet irradiation area, and the inside of vice cleaning tank needs to be disinfected and sterilized, and better cleaning effect is achieved.

[0021] (4) the vice cleaning tank of this ultrasonic cleaning machine is equipped with inner water level scale and outer water level scale, and the height of outer water level scale is higher than or equal to the height of inner water level scale, which facilitates the comparison of the inner and outer water levels of vice cleaning tank when adding water, and when the inner and outer water levels of vice cleaning tank are equal, the ultrasonic cleaning efficiency can be maximized.

[0022] (5) the vice cleaning tank of this ultrasonic cleaning machine is suspended above the bottom of main cleaning tank, reduces the friction between vice cleaning tank and main cleaning tank, and avoids noise and abrasion caused by friction.

[0023] (6) the main cleaning tank of this ultrasonic cleaning machine is suspended with lower shell, and a sealing ring is arranged between the top edge of main cleaning tank and the bottom edge of opening, which slows down the shell vibration caused by ultrasonic, and optimizes the use feeling.

[0024] (7) the vice cleaning tank of this ultrasonic cleaning machine is a food-grade metal tank, which facilitates the cleaning and disinfection of vice cleaning tank. DRAWINGS

[0025] Figure 1 It is an embodiment of the utility model and shows a structural diagram.

[0026] Figure 2 It is an embodiment of the utility model and shows a structural diagram.

[0027] Figure 3 It is Figure 1 Another angle structural diagram.

[0028] Figure 4 is a top view structural schematic diagram of the utility model.

[0029] Figure 5 is Figure 4 is a section view structural schematic diagram at A-A.

[0030] Figure 6 is Figure 5 is an enlarged structural schematic diagram at C.

[0031] Figure 7 is a section view structural schematic diagram of another embodiment of the utility model.

[0032] Figure 8 is Figure 4 is a section view structural schematic diagram at B-B.

[0033] Reference signs:

[0034] 11-upper shell, 12-lower shell, 13-control panel, 14-button, 15-pressing ring, 16-sealing ring, 17-opening, 2-main cleaning tank, 21-supporting part, 22-limiting part, 3-cover, 31-light guide handle, 32-input electrode, 33-ultraviolet irradiation area, 331-ultraviolet lamp, 332-sealing ring, 333-translucent sheet, 4-secondary cleaning tank, 41-supporting part, 42-outer water level scale, 43-inner water level scale, 5-ultrasonic wave generating device, 6-control circuit, 61-switch, 62-indicator light, 63-output electrode. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and examples:

[0036] Example one, refer to Figures 1-6 and Figure 8 , the application provides an ultrasonic cleaning machine with function expansion function, including shell, main cleaning tank 2, ultrasonic wave generating device 5 and control circuit 6, main cleaning tank 2 is arranged in the shell, ultrasonic wave generating device 5 is arranged at the outer bottom of main cleaning tank 2, and is electrically connected with control circuit 6, the top of the shell corresponding main cleaning tank 2 is equipped with opening 17, and the opening 17 top is equipped with cover 3, the main cleaning tank 2 is equipped with the supporting part 21 for placing secondary cleaning tank 4 and the limiting part 22 for limiting the relative position of secondary cleaning tank 4 and main cleaning tank 2.

[0037] The ultrasonic cleaning machine with function expansion function provided by the application comprises a sub cleaning tank 4, a supporting part 41 is arranged on the side wall of the sub cleaning tank 4, and the supporting part 41 is matched with the supporting part 21; the supporting part 21 is arranged on the side wall of the main cleaning tank 2, and the distance between the supporting part 21 and the inner bottom surface of the main cleaning tank 2 is greater than the distance between the supporting part 41 and the outer bottom surface of the sub cleaning tank 4; and the limiting part 22 is arranged above the supporting part 21.

[0038] The outer periphery of the top of the sub cleaning tank 4 is provided with an outward turning edge, the bottom surface of the outward turning edge forms the supporting part 41; the front and rear side walls of the main cleaning tank 2 are respectively provided with a supporting protrusion, the top surface of the supporting protrusion forms the supporting part 21; the upper portion of the main cleaning tank 2 is provided with a limiting protrusion, the bottom surface of the limiting protrusion forms the limiting part 22, and the outward turning edge of the sub cleaning tank 4 is inserted between the supporting protrusion and the limiting protrusion. The sub cleaning tank 4 is a metal tank, preferably a food-grade stainless steel material. As a further scheme, referring to Figure 7 As shown, the sub cleaning tank 4 is provided with an inner water level scale 43 and an outer water level scale 42, and the height of the outer water level scale 42 is higher than or equal to the height of the inner water level scale 43.

[0039] The shell comprises an upper shell 11 and a lower shell 12, the upper shell 11 is provided with the opening 17 at the top corresponding to the main cleaning tank 2, the main cleaning tank 2 is connected at the bottom of the upper shell 11 and is suspended from the lower shell 12, a sealing ring 16 is arranged between the top edge of the main cleaning tank 2 and the bottom edge of the opening 17, and the sealing ring 16 is respectively sealed with the top edge of the main cleaning tank 2 and the bottom edge of the opening 17.

[0040] Specifically, the top edge of the main cleaning tank 2 is provided with a turning edge corresponding to the sealing ring 16, and a pressing ring 15 is further connected between the turning edge and the upper shell 11. The outer side of the pressing ring 15 is provided with a plurality of insertion holes, the upper end of the upper shell 11 is provided with a plurality of connecting pins matched with the insertion holes, the plurality of connecting pins correspond to the plurality of insertion holes one by one, the connecting pins at the upper end of the upper shell 11 are inserted into the corresponding insertion holes on the outer side of the pressing ring 15, and the turning edge part at the upper end of the main cleaning tank 2 is clamped between the inner side of the pressing ring 15 and the sealing ring 16; the output electrode 63 is arranged on the inner side of the opening 17 at the upper end of the upper shell 11, and the output electrode 63 is electrically connected with the control circuit 6.

[0041] The control circuit 6 is arranged at the right end in the shell, the control panel 13 is arranged on the top surface of the right end of the upper shell 11 corresponding to the upper portion of the control circuit, the control switch 61 and the indicator lamp 62 are arranged on the control circuit, and the button 14 and the light transmission hole are arranged on the control panel 13 corresponding to the control switch 61 and the indicator lamp 62 respectively.

[0042] The cover body 3 is provided with an ultraviolet irradiation area 33, the top of the sub cleaning tank 4 is open, and the top of the sub cleaning tank 4 is opposite to the ultraviolet irradiation area 33 after the limiting cooperation of the sub cleaning tank 4 and the main cleaning tank 2.

[0043] The ultraviolet irradiation area 33 comprises an ultraviolet lamp 331, a light-transmitting sheet 333 and a sealing ring 332. The cover 3 is divided into an upper cover and a lower cover, and a sandwich layer is formed between the upper cover and the lower cover. A circuit board is arranged in the sandwich layer. The circuit board is provided with an input electrode 32 corresponding to the output electrode 63 at one end, and is provided with the ultraviolet lamp 331 and a light source 35 at the other end. The ultraviolet lamp 331 and the light source 35 are electrically connected with the input electrode 32. The lower cover is provided with an opening corresponding to the ultraviolet lamp 331. The light-transmitting sheet 333 is arranged on the upper side of the opening. The sealing ring 332 is arranged around the ultraviolet lamp 331. The lower end of the sealing ring 332 is sealingly matched with the gap between the light-transmitting sheet 333 and the opening. The upper end of the sealing ring 332 is press-connected with the circuit board. Therefore, the sealing ring 332 not only plays a sealing role, but also avoids the ultraviolet lamp 331 from irradiating light into the sandwich layer. The light source 35 is located around the sealing ring 332 and can irradiate light into the sandwich layer. The light source 35 is lighted up at the same time as the ultraviolet lamp 331.

[0044] A light guide handle 31 is arranged on the left top surface of the cover 3 (but not limited to this position). The light guide handle 31 extends into the sandwich layer to guide the light of the light source 35 out after being lighted up.

[0045] After the cover 3 is matched with the opening 17 of the shell, the input electrode 32 is connected with the output electrode 63. The ultraviolet lamp 331 and the light source 35 can be lighted up by starting the switch 61.

[0046] In specific use, the auxiliary cleaning tank 4 is put into the main cleaning tank 2 from the side without the supporting part 21 and the limiting part 22. When the gap between the supporting protrusion and the limiting protrusion and the supporting part 41 of the auxiliary cleaning tank 4 are aligned, the outer flange of the auxiliary cleaning tank 4 is inserted between the supporting protrusion and the limiting protrusion. The dental cover or the false tooth to be cleaned is placed in the auxiliary cleaning tank 4. Water is added in the auxiliary cleaning tank 4 and the main cleaning tank 2 respectively. Whether the water levels in the auxiliary cleaning tank 4 and the main cleaning tank 2 are approximately equal is determined by observing the water level scales on the inner and outer walls of the auxiliary cleaning tank 4. When the water levels are approximately equal, the vibration generated by the ultrasonic wave generating device 5 can be more effectively transmitted to the auxiliary cleaning tank 4, so that a good cleaning effect is achieved. The cover 3 is covered. The input electrode 32 is connected with the output electrode 63 to form a channel. The switch 61 of the ultrasonic cleaning machine is in an open state by pressing the button 14. The indicator lamp 62 corresponding to the state is lighted up. When the device is started, the ultraviolet lamp 331 is lighted up. The ultraviolet light transmits through the light-transmitting sheet 333 and irradiates the auxiliary cleaning tank 4. The ultraviolet light disinfects and sterilizes the articles to be cleaned in the auxiliary cleaning tank 4, so that a better cleaning effect is achieved.

[0047] Embodiment two, the difference with embodiment one is that: the outer bottom of the main cleaning tank is provided with a magnetic attraction point, the inner bottom of the main cleaning tank is provided with the supporting part and the limiting part above the magnetic attraction point; or, the main cleaning tank or the opening of the shell is provided with a second limiting part. The bottom of the auxiliary cleaning tank is provided with a magnetic attraction part, the magnetic attraction part is supported on the magnetic attraction point and is limited by the magnetic attraction point; or, the second limiting part and the auxiliary cleaning tank are blocked to realize secondary limiting. The above embodiment is not shown in the figure.

[0048] Embodiment three, the difference with embodiment one is that: the inner bottom of the main cleaning tank is provided with the supporting part above the ultrasonic wave generating device; the auxiliary cleaning tank is provided with a pressure receiving part, the pressure receiving part is pressed against the limiting part. The auxiliary cleaning tank is closer to the ultrasonic wave generating device, and the energy loss of vibration is less. The above embodiment is not shown in the figure.

[0049] The above is the preferred scheme of the utility model, the basic principle, the main features and the advantages of the utility model are displayed and described. The skilled in the art should understand that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, these changes and improvements all fall within the scope of the utility model, the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic cleaning machine with a function expansion function, comprising a housing, a main cleaning tank (2), an ultrasonic generator (5) and a control circuit (6), wherein the main cleaning tank (2) is arranged in the housing, the ultrasonic generator (5) is arranged at the outer bottom of the main cleaning tank (2) and is electrically connected to the control circuit (6), the housing is provided with an opening (17) at the top corresponding to the main cleaning tank (2), and a cover (3) is provided above the opening (17), characterized in that: A support portion (21) for placing the auxiliary cleaning tank (4) and a limiting portion (22) for limiting the relative position of the auxiliary cleaning tank (4) and the main cleaning tank (2) are provided in the main cleaning tank (2) or on the inner side of the opening (17) of the shell or on the cover (3).

2. The ultrasonic cleaning machine with function expansion function according to claim 1, characterized in that: The auxiliary cleaning tank (4) comprises a supporting portion (41) provided on the side wall of the auxiliary cleaning tank (4), and the supporting portion (41) is engaged with the supporting portion (21); the supporting portion (21) is arranged on the side wall of the main cleaning tank (2), and the distance between the supporting portion (21) and the inner bottom surface of the main cleaning tank (2) is greater than the distance between the supporting portion (41) and the outer bottom surface of the auxiliary cleaning tank (4); and the limiting portion (22) is arranged above the supporting portion (21).

3. The ultrasonic cleaning machine with function expansion function according to claim 2, characterized in that: At least two sides of the top periphery of the auxiliary cleaning tank (4) are provided with outer flanges, and the bottom surfaces of the outer flanges form the supporting portion (41); the upper parts of the front and rear side walls of the main cleaning tank (2) are respectively provided with supporting protrusions, and the top surfaces of the supporting protrusions form the supporting portion (21); the main cleaning tank (2) or the shell is provided with a limiting protrusion above the corresponding supporting protrusion, and the bottom surface of the limiting protrusion forms the limiting portion (22), and the outer flange of the auxiliary cleaning tank (4) is inserted between the supporting protrusion and the limiting protrusion.

4. The ultrasonic cleaning machine with function expansion function according to claim 1, characterized in that: The outer bottom of the main cleaning tank (2) is provided with a magnetic attraction point, and the inner bottom of the main cleaning tank (2) corresponds to the upper side of the magnetic attraction point to form the support portion and the limiting portion; or, a second limiting portion is further provided in the main cleaning tank (2) or on the inner side of the opening (17) of the shell or on the cover (3); The auxiliary cleaning tank (4) comprises a magnetic attraction part at the bottom thereof, the magnetic attraction part being placed on a magnetic attraction point and engaging with the magnetic attraction point to achieve a limit position; or, a second limit portion and the auxiliary cleaning tank (4) are blocked to achieve a secondary limit position.

5. The ultrasonic cleaning machine with function expansion function according to claim 1, characterized in that: The inner bottom of the main cleaning tank (2) corresponds to the upper side of the ultrasonic generating device (5) to form the supporting portion (21); the main cleaning tank (2) includes a secondary cleaning tank (4), and the secondary cleaning tank (4) is provided with a pressure-bearing portion, which is pressed against the limiting portion (22).

6. The ultrasonic cleaning machine with function expansion function according to claim 1, characterized in that: The bottom of the cover (3) is provided with an ultraviolet irradiation area (33), and an ultraviolet lamp (331) is provided on the ultraviolet irradiation area (33), and the ultraviolet lamp (331) is electrically connected to the control circuit (6); the top of the auxiliary cleaning tank (4) is open, and after the auxiliary cleaning tank (4) and the main cleaning tank (2) are limitedly matched, the top of the auxiliary cleaning tank (4) is opposite to the ultraviolet irradiation area (33).

7. The ultrasonic cleaning machine with function expansion according to claim 1, characterized in that: The auxiliary cleaning tank (4) is provided with an inner water level scale (43) and an outer water level scale (42), and the height of the outer water level scale (42) is higher than or equal to the height of the inner water level scale (43).

8. The ultrasonic cleaning machine with function expansion according to claim 1, characterized in that: The shell comprises an upper shell (11) and a lower shell (12); the top of the upper shell (11) is provided with the opening (17) corresponding to the main cleaning tank (2); the main cleaning tank (2) is connected to the bottom of the upper shell (11) and is suspended from the lower shell (12); a sealing ring (16) is provided between the top edge of the main cleaning tank (2) and the bottom edge of the opening (17); the sealing ring (16) is respectively sealed with the top edge of the main cleaning tank (2) and the bottom edge of the opening (17).

9. The ultrasonic cleaning machine with function expansion function according to claim 1, characterized in that: The control circuit (6) is arranged in the housing; the auxiliary cleaning tank (4) is a metal tank.

10. The ultrasonic cleaning machine with function expansion according to claim 9, characterized in that: The control circuit (6) is located at the left end, the right end or the lower part of the housing.

Citation Information

Patent Citations

  • Ultrasonic cleaning box

    CN214391406U